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General Motors quickly deleted the power figures for its new 6.6-liter Duramax turbodiesel V8 after they were posted to the GM Powertrain website, but we now have confirmation of the heavy-duty engine’s output. TTAC’s Matthew Guy has just sent us the figures from the Texas Motor Speedway in Fort Worth, where GM is debuting its […]
The post GM 6.6-liter Duramax Diesel V8 Power Figures Confirmed appeared first on The Truth About Cars.read more

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